Combination steering mechanism for plows



W. C. RARIG. COMBINATION smmwa MECHANISM FOR PLOWS. APPLICATIQN FILEDJUNEIB, 19I4.

Patented Mar. 30, 1920.

W. C. RARIG. COMBINATION STEERING MECHANISM FOR FLOWS.

APPLICATION FILED JUNE I8, I9I4.

Patented May. 36,1920.

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w. c. RARIG. COMBINATION SIIEERING MECHANISM FOR PLOWS. I APPLICATIONFILED IUNEIIB, I914- 1,335,529.

WELD'EN C. RARIG, 0F CORPUS CHRISTI, TEXAS.

COMBINATION STEERING MECHANISM FOR FLOWS.

Specification of Letters Patent.

Continuation of application Serial No. 743,252, filed January 21, 1913.This application filed June 18, 1914.

Serial No.

To all whom it may concern:

Be it known that I, WELDEN C. RARIG, a citizen of the United States,residing at Corpus Christi, in the county of Nueces and State of Texas,have invented certain new and useful Improvements in CombinationSteering Mechanism for Plows, of which the following is a specification.

My invention relates to a combination steering mechanism for plows orother earth working implements and this application is a continuation ofmy former application, Serial No. 743,252, filed January 21, 1913, uponwhich Patent No. 1,094,018 was granted.

As set forth in the above patent, when plowing hard ground or groundfilled with obstructions which offer great resistance to the plowbodies, it is generally impossible to use a gang of plows having acombined width equal to the width of the traction engine, and in orderthat the engine may travel with both traction wheels on a hard unplowedsurface, it is necessary that the plow traverse a path at one side ofthe path of the engine. To this end I have provided improved draftmechanism as described in said patent for connecting the engine to theplow when the latter is in a position disposed laterally from the pathof said engine, and have provided in connection therewith, a combinationsteering mechanism for the plow which feature forms the subject-matterof thepresent application.

Among other features of my invention, I have provided supporting wheelsfor the plow which are vertically adjustable with respect to the frameof the plow so that the frame and the plow bodies carried thereby may bemade to assume various positions relative to the wheels according to thedepth of furrow desired and in combination with the above arrangement ofadjustable elements, I have provided steering mechanism which isvertically immovable with respect to the plow frame and which at thesame time operates to guide or steer the forward wheels of the plowirrespective of their position with respect to the plow frame. I havefurther arranged my steering mechanism to be actuated by or inconnection with the draw-bar of the plow in such a manner as toautomatically maintain the plow in the desired position at one side ofthe path of the engine regardless of the depth of furrow being plowed.In order that the guiding of the plow may be more effectuallyaccomplished, I have provided an attachment for securing the draft barto the plow frame which attaching means may be adjusted to secure themost effective operation of the steering mechanism with varyingconditions of soil and depths of furrow. The draw bar is preferablyconnected to the plow frame rearwardly of the front end of said frame inorder to minimize the tendency of the plow to adjust itself to changesin direction of movement of the engine or other propelling means. Afurther feature of my invention is the operative arrangement of thesteering wheels w1th respect to the plow bodies whereby I am enabled tooffset the tendency of the plow bodies to follow a sinuous path in avertical plane when plowing rough or uneven ground.

These and other features of my invention will be set forth moreparticularly in the following specification taken in connection with theaccompanying drawings, in which I have illustrated one embodiment of myinvention.

In the drawings;

Figure 1 shows a top plan view of a plow embodying the features of myinvention;

Fig. 2 shows a side elevation of the same, the plow being in operativeposition with respect to the surface of the ground;

Fig. 3 shows a front elevation of the same;

Fig. 4 is a section on the line 44 of Fig. 1 showing the attachment ofthe draw bar connecting rods;

Fig. 5 is a section along the line -55 of Fig. 2 looking in thedirection of the arrows showing another view of certain partsillustrated in Fig. 4;

Fig. 6 is a detail front elevation of a hanger for the draw barconnecting rods;

Fig. 7 shows a detail View of a steering knuckle showing the connectionof the same with the shaft of the steering wheel;

Fig. 8 shows a vertical section. through a gear box carried by the shaftof the steering wheel Sl'lOWlIlg certain parts in elevation; i

Fig. 9 shows a horizontal section through the gear box illustrated inFig. 8;

Fig. 10 is a detail view showing the resili- Patented Mar.30,1920.

ent connection of the steering rod with a steering knuckle;

Fig. 11 is a vertical section through the rear end of the draw-bar,showing the inner draft member and sliding key in elevation; and

Fig. 12 is a detail view showing the eyebolt to which the steering rodis attached.

Like numerals and letters of reference are used to designate like partsand elements in the several figures of the drawings.

Referring to the drawings, the frame of my improved plow is shown ascomprising three parallel longitudinal channel beams A A A of graduatedlengths terminating in different transverse planes. F indicates aremovable longitudinal channel beam bent so as to form longitudinalportions F F F? lying parallel to and spaced from the rear ends of thefixed channel beams A A and A D D and D designate removable longitudinalchannel beams which are located between the fixed longitudinal beams andthe removable longitudinal bent beam and which have their horizontalflanges extending inwardly toward the outwardly extending horizontalflanges of the fixed longitudinal beams. Plow standards K K and K extendupwardly between the longitudinal fixed beams A A and A and thelongitudinal removable beams D, D and D and are secured thereto by boltsK*. The plow bodies carried by the plow standards K K and K aredesignated. as k and 70 Extending transversely across the top flanges ofthe channel beams A A and A D D D and F, are tying means G G G and Gwhich are also preferably of channel cross section. A flat plate Gunderlies the lower horizontal flanges of the longitudinal beams.Extending transversely across the lower horizontal flanges of thelongitudinal channel beams beneath the plate G and alining with the toptransverse beams are tie plates g g g and g.

The front endsof the longitudinal beams A A A and D extend between twofront transverse angle beams H and H the latter beams having theirvertical flanges extending upwardly from the horizontal flanges to whichthe longitudinal beams are secured. An additional longitudinal fixedbeam A is shown by dotted lines spaced from the longitudinal beam A inorder to illustrate'the manner in which the frame may be extended toaccommodate additional plow bodies at the rear of the plow body 70Secured to the upwardly projecting vertical flanges of the front anglebeams H and H are plates L and L having pairs of spaced horizontal lugsor ears Z and Z respectively, as shown more particularly in Fig. 3.Extending vertically through the spaced pairs of cars Z and Z are thevertical portions M and M of the axles of the front wheels B and BInterposed between the spaced ears Z is a steering knuckle N 2 throughwhich the vertical portion of the axle M passes, a vertical key-way mbeing formed in the axle into which extends a key m secured to andcarried by the knuckle as shown in detail in Fig. 7. In this manner theaxle may be adjusted vertically relatively to the knuckle, but isnon-rotatably connected therewith.

N designates a knuckle interposed between the ears Z of the plate Lthrough which extends the vertical portion of the axle M a key andgroove connection being interposed between the knuckle and axle such asabove described in connection with the axle M and knuckle N L designatesa bracket rigidly secured to the rear of the plow frame having laterallyprojecting spaced ears Z between which is located the knuckle N 3through which extends the vertical portion of the rear axle M of therear wheel 13 a groove and key connection being provided between theaxle and knuckle.

A steering arm n projects from the knuckle N and is pivotally connectedto a screw threaded rod 0 as shown in Fig. 1-which extends through aneye 0 on a plate 0 rigidly secured to the top horizontal flanges of thechannel beams A and F. Lock nuts 0 and 0 engage the rod 0 onoppositesides of the eye 0 so that the position of the rear steeringwheel B may be adjusted with respect to a vertical axis.

Steering arms a and a project forwardly from the knuckles N and Nrespectively, these steering arms being pivotally connected by a rod N,the latter being adjustable in length by means of a turn buckle n so asto adjust the relative positions of the front wheels B and B It will beapparent that by the above connection the forward steering wheels B andB may be made to move in unison about vertical axes.

Rigidly secured to the brackets L and L at the forward end of the plowframe are vertically extending rack bars P and P respectively. A similarrack bar P projects upwardly adjacent the rear axle M and is rigidlysecured at its lower end to a bracket L which is secured to the plowframe, as shown more particularly in Fig. 2. The rack bars P P and Pext-end through gear casings R R and R respectively, through which alsoextend the vertical portions of the axles M M and M respectively, saidaxle portions being rotatable with respect to said gear casings. Thegear casings and gears therein are all similar and are illustrated moreparticularly in Figs. 3, 8 and 9. In the latter two figures are shownthe gear casing and inclosed gears for relatively adjusting the axle Mwith respect to the plow frame. R indicates the removable side cover ofeach gear box which is socured in place by screws 1 fastened throughregistering lugs on the casing and cover. R designates a stub shaftjournaled at its ends in the casing and cover and having rigidly securedthereon a pinion r and a gear wheel W, the latter meshing with a pinion1 fixed upon a counter shaft R extending through and journaled in thecover R and opposing wall of the casing. The vertical rack bar P extendsbetween the pinion r with which it meshes and a cylindrical bearing 1'on the shaft R the rack bar being thereby retained in mesh with thepinion T The shaft R has secured thereto a ratchet 1' on the portionthereof outside of the cover of the gear casing. A pawl R cooperateswith the ratchet r to lock the same and with it the rack bar P in anydesired adjusted position. 1 is a spring for retaining the pawl R inengagement with the ratchet wheel 9. The end of the shaft R is squared,as shown at B so as to be engaged by a wrench for rotating the same.

In order to raise or lower any of the wheels with respect to the plowframe, a wrench is applied to R and the respective shaft R therebyrotated, which through the meshed pinion v" and gear r raises or lowersthe corresponding rack bar through the engagement therewith of thepinion 9' thereby vertically adjusting such rack bar with respect to thegear casing and at the same time vertically adjusting the correspondingaxle with respect to the plow frame. In this manner each of the wheelsmay be raised or lowered to assume the desired position with respect tothe plow frame. The gear casing is prevented from moving verticallyrelatively to the axle by means of a. shoulder it? formed by reducingthe upper end of the axle which passes through the gear casing, and by acollar m clamped to the upper end of the axle immediately above the gearcasing.

The draw bar which operatively connects the plow with the tractionengine or other propelling means, is connected with the plow frame bymeans of a draw bar connecting mechanism comprising two draw barconnecting rods T and T These rods T and T extend beneath the plow frameand'diverge rearwardly from the front cross members H and H and havereaiwardly bent flat portions each provided with a plurality ofapertures T therethrough by means of which a connection is made with theplow frame at two points on opposite sides of the center line of saidframe. For the purpose of making the connection above referred to thelongitudinal fixed beam A is provided with. a depending plate 75 whichis riveted or otherwise secured to the vertical web of said longitudinalbeam at a point substantially opposite the plow standard K The dependingplate t and oppositely disposed plow standard K are suitably aperturedto be engaged by a transverse fixed tie-rod t which engages any suitablepair of apertures T in the draw bar connecting rods T and T and issecured in fixed position by nuts 6 or other suitable fastening means.In order to provide a. certain flexibility in the attachment of the drawbar connecting rods to the plow frame the tie-rod t is provided at eachend adjacent the inner faces of the depending plate t and plow standardK with collars 8 having a length greater than the thickness of said drawbar connecting rods. At their inner ends these collars abut againstwashers s which have a diameter greater than the diameter of the collarss and which are spaced apart and held in fixed position with respect tothe tie rod t by means of a spacing sleeve S. It will be seen that thedraw bar connecting rods T and T are free to slide upon the collars sbetween the washers s and the adjacent faces of the plate t and plowstandard K Adjacent the front transverse angle beams H and H theforwardly converging rods T and T 2 are supported by a transverse bar vwhich is detachably secured at its ends to the depending hanger platesV. The plates V are secured to the transverse beams H and H and theirlower depending portions are provided with a plurality'of apertures-vwhich permit the adjustment of the bar 4) to assume various positionswith respect to the beams H and H By the construction above described anadjustable hanger is provided which permits a transverse movement of theforward ends of the draw bar connecting rods to correspond to thelateral motion. of the rear ends of said rods on the collars .9. Byadjusting the rear ends of the tie rods in combination with differentpositions of the transverse bar e I am able to apply the draft on theplow frame in the manner most suitable for the soil being plowed. Inorder that the desired inclination of the draw bar connecting rods withrespect to the frame may be secured with greater accuracy, a turnbuckleT is provided in connection with one of said connecting rods.

Forwardly of the hanger plate V the draw bar connecting rods T and T arebent forwardly to form parallel extremities which are adapted to form apivotal connection with the corresponding parallel flanges of a clevis UThe clevis U connected by means of a vertically extending pivot with thedraw bar socket W which is adapted to receive and form a rigidconnection with the draw bar member C The member C is of sleeve form andis adapted to receive the draw bar C which has rigidly secured thereto,by means of the pin 0 the key 0 which is adapted to slide in the slots 0in said member. The forward position of the key 0 in the slots 0 may belimited in degree by the detachable collar C which may be se cured tothe sleeve 0 by studs 0 engaging any suitable pair of threaded holes 0*in said member. The key 0 is provided with a transverse head, whichcarries on its upper side a pivotally mounted eye bolt w having aplurality of apertures w in the head thereof, any one of which isadapted to be engaged g8 the hooked extremity of a steering, rod whichoperatively connects the draft mechanism with the steering arm oi Thelength of the steering rod X may be adjusted by means of the turn bucklem and its outer extremity is resiliently connected to the steering arm mby means of the following construction:

The forward extremity of the steering arm n has rigidly connectedthereto a bolt 00 which carries a yoke X within which is located aspring m surrounding the portion of the steering rod X which passesthrough said yoke. A collar :0 is mounted to the steering rod X adjacentthe inner end of the yoke, said collar having the up-set end :0 withinthe yoke and abutting against the end of the coil spring W. A collar 90*is secured to the steering rod on the inner side of the yoke in contactwith the collar 03 At its outer end the steering rod carries anothercoller m which is slidably mounted thereon and retained in position onsaid steering rod by means of the nut :0 which threadedly engages theextremity thereof. The collar w is provided with the inner up-set end itwithin the yoke X The nut in may be retained in position on the steeringrod by means of a spring in or other suitable means.

It will be apparent that by this construction a connection is made whichwill permit a relative movement of the steering rod X with respect tothe steering arm 71. the fixed collar m sliding within the yoke X andcompressing the spring 00 against the opposite collar :0, it beingunderstood that at the same time the steering rod X slides outwardlywith respect to the collar w;

Having described the construction of one embodiment of my invention, Iwill now set forth some of the advantages thereof in connection with theoperation of the same. From the description it will be evident that thesteering knuckles with their corresponding steering arms and the rods Nand X are secured against vertical movement with respect to the frame ofthe plow and it has also been made clear that each of the supportingwheel's B B and B is vertically and independently adjustable withrespect to the plow frame and the plow bodies carried thereby. Thisconstruction enables the operator to adjust the wheels in a manner tosecure the desired depth of furrow at the same time maintaining theplane of the plow frame in the most advantageous position with respectto the surface of the ground. It is to be noted that when suchadjustment is made, the steering arms and associated steering mechanismdo not change their relative positions with respect to the frame and donot in any way interfere with obstacles which lie beneath and in thepath of the plow.

From the inclination of the draw bar, shown most clearly in F ig. 1, itwill be understood that the engine or other propelling means is adaptedto travel in a path at one side of the longitudinal axis of the plow orat one side of the path of travel of the plow, and it will further beapparent that the engines path is located on that side of the path ofthe plow on which the connection is made between the steering arm n andthe draw bar. By this construction I am enabled to maintain the path ofthe plow at one side of the path of the engine in order that the enginemay travel at all times on a hard, unplowed surface. The maintenance ofthis relative position of the engine and plow is due to the fact thatthe tendency of the plow to aline longitudinally with the engineoperates in each instance to direct the forward peripheries of the frontsteering wheels toward the furrow which was plowed on the next precedingtrip across the field, it being understood, of course, that this furrowis at the right of the plow, as viewed in Fig. 1. As previously setforth, when the engine is moving forwardly the plow will tend to movetoward a position directly behind the engine. As soon as this movementbegins the draw bar 0 will assume a position more nearly coinciding withthe longitudinal axis of the plow, thereby pulling both of the steeringarms N and N 2 to the right, as viewed in Fig. 1, thereby directing thewheels B and B toward the furrow and offsetting the tendency of the plowto move inwardly toward the path of the engine. When the engine isbacked the natural tendency of the plow will be to move outwardly at itsforward end away from the path of the engine, but as soon as the engineexerts a backward thrust on the draw bar the member C will slide withinthe member '0 and the key 0 will move rearwardly in the slots 0 therebydirecting the forward portions of the peripheries of the steering wheelstoward the right, as viewed in Fig. 1, and steering the plow toward aposition behind the engine, as opposed to the tendency of the plow tomove toward a position with its axis at right angles to the path of theengine. It will be seen that when the key 0 is in its normal forwardposition, the steering arm X is substantially at right angles to theaxis of the draw bar so that a movement of the key rearwardly in theslots 0 will dire .t the steering knuckles n and n to the right asviewed in Fig. 1. By changing the position of the collar C the forwardposition of the key 0 can be limited as desired. -The plow may befurther adjusted to follow the path desired by inclining the rear wheelB about its vertical axis so as to tend to overcome any natural tendencywhich the plow may have when passing over a particular piece of groundto move in a course other than that desired.

I further overcome the tendency of the plow to follow an irregular pathor to ad just itself to momentary changes of direction of travel of theengine or propelling means by attaching the draw bar connecting means tothe frame at two points beneath and rearwardly of the front crossmembers of the plow frame. By this construction the draft is applied tothe plow more nearly the center thereof and suiiiciently far removedfrom the forward end of the plow frame to largely overcome anyinfluences tending to give the plow a constantly changing direction ofmovement by virtue of the draft applied thereto. It is well known thatsome soils plow differently than others and therefore the plow is atdifferent times subjected to varying influences tending to direct itfrom its normal path at one side of the engine. In order that the drafton the plow may be adjusted in direction so as to secure the bestpossible results under different cir cumstances, I have made the drawbar con-- necting means adiustable with respect to the plow frame. Fromthe construction described, it will be evident that the draw barconnecting rods T and T may be given various horizontal and verticalinclinations with respect to the plow frame bv combining the adjustmentsmade possible by the hanger plates V with the adjustments made possibleby the connection of the draw bar connecting members 'I and T at therear ends of said members. In order that the effective length of thesteering rod X may be adjusted to correspond with various adiustments ofthe draw bar conne ting rods T and T I have provided a plurality ofapertures 'w in the eye bolt w and I have further provided a turn buckle00 whereby finer adjustments in length may be made. The resilientconnection of the steering rod X with the steering arm n operates topermit a certain flexibility of the parts of the steering mechanism incase either of the forward wheels B or B suddenly encounters anobstruction in its path. I 4

From an inspection of Fig. 1 it will be clear that the wheels B and Bare substantlally on a line with the plow bodies 70 k and k so that Whenthe plow is passing over rough or uneven ground the effect of the wheelB passing over obstructions or into depressions will be to merelyoscillate the plow frame and steering mechanism about a line extendingbetween the wheels B and B thus preventing the plow bodies from plowinga deeper or more shallow furrow at different points longitudinally ofthe path of the plow. In connection with the plowing of rough or unevenground, the tendency of the plow to leave its predetermined path becauseof an uneven or up and down movement of the forward end thereof, iscorrected by virtue of the fact that the steering mechanism lies insubstantially the same horizontal plane as the plow frame so that if,for instance, the wheel 13 drops int-o a depression or passes over anobstruction, the distance between the forward end of the steering arm nand the eye bolt w will tend to become greater and the steering rod Xwill thereupon operate to direct both of the wheels B and B toward thefurrow.

In the foregoing specification I have set forth the construction of aspecific embodiment ofmy invention and have explained some of theadvantages of this construction in connection with the operation of theplow when propelled by a traction engine at one side of the path of suchengine. It will be understood, however, that implements embodying myinvention may be operated in other ways and by other means than thosesuggested or described herein and that my improved plow may beconstructed in many different forms without departing from the spirit ofmy invention, and I do not, therefore, wish to be limited in the scopeof my invention except as defined by the appended claims.

I claim 1. In a plow adapted to be drawn by a propelling means, thecombination with a supporting frame of a supporting wheel upon whichsaid frame is mounted, means for adjusting said wheel vertically withrespect to said frame, a steering knuckle connected to said wheel foroscillating the same about a vertical axis, and means for posi tivelypreventing vertical movement of said steering knuckle when said wheel isadjusted vertically with respect to said frame. I

2. In a plow adapted to be drawn by a propelling means, the combinationwith a substantially triangular frame carrying plow bodies, of threesupporting wheels upon which said frame is mounted, axles by which saidwheels are carried, brackets secured to the forward end of said frame atopposite sides thereof, and at the rear end thereof, said axles havingvertically extending parts rotatably and slidably mounted in saidbrackets, steering knuckles nonrotatably mounted on said axles andsecured wheels on which said frame is mounted,

steering mechanism for oscillating the wheels at the forward end of saidframe about vertical axes, means for adjusting said Wheels verticallywith respect to said supporting frame, and means for preventing verticalmovement of said'steering mechanism by the vertical adjustment of saidWheels.

4. In a plow adapted to be drawn by propelling means, the combinationwith a supporting frame carrying plow bodies of Wheels on which saidframe is mounted, means for vertically adjusting all of said wheelsrelatively to said frame and independently of each other, steeringmechanism for oscillating the steering Wheels about vertical axes, andmeans for positively preventing vertical movement of the parts of saidsteering mechanism with re spect to said frame u on vertical adjustmentof a wheel operated by said steering mechanism.

5. In a plow adapted to be drawn by propelling means, the combinationwith a supporting frame carrying plow bodies of a steering wheel uponwhich said frame is mounted, a vertically extending axle carrying saidwheel and rotatably and slidably mounted in said frame, a steeringknuckle having a non-rotative engagement with the vertical portion ofsaid axle, means for adjusting said axle vertically with respect to saidframe, means for preventing vertical movement of said steering knuckleby engagement with the upper side thereof upon vertical adjustment ofsaid axle, and means connected to said steering knuckle for oscillatingsaid wheel about a vertical axis.

6. In a plow adapted to be drawn by a propelling means at one side ofthe path ,of the propelling means, the combination with a supportingframe carrying plow bodies of wheels upon which said frame is mounted,means for vertically adjustingsaid wheels relatively to the supportingframe independently of each other, steering mechanism for oscillatingthe steering wheels about vertical axes, means for preventing verticalmovement of parts of said steering mechanism upon vertical adjustment ofa steering wheel, a draw-bar connected to said frame, and meansconnecting said draw-bar with said steering mechanism on the side of thedraw-bar adjacent the path of the propel tical axes, and draw-barmechanism connected to said frame, said steering mechanism beingconnected to said draw-bar mechanism on the side of the latter towardthe longitudinal center line of said propelling means.

8. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andthrough which the axles are vertically adjustable, said knuckle beingsecured against vertical movement with respect to the supporting frame,a rod connecting the knuckles of the front wheels, draw-bar mechanismconnected to said frame, and a steering rodconnecting one of the frontknuckles with said draw-bar mechanism.

9. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatively engaging the axlesand having said axles adjustable vertically therethrough, means forsecuring said knuckles against vertical move ment with respect to saidframe, means connecting the knuckles of the front wheels, a draw bar,means connected to said draw bar and adjustably connected to the lowerpart of said frame rearwardly of the forward end thereof, and a steeringrod connecting one of the said knuckles with said draw bar.

10. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andthrough which the axles'are vertically adjustable, means for securingsaid knuckles against vertical movement with respect to the supportingframe, a

rod connecting the knuckles of the front wheels, draw-bar mechanismconnected to said frame, a steering rod connecting one of the frontknuckles with said draw-bar mechanism, and means to adjust the length ofsaid steering rod.

11. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andhaving the axles adjustable vertically therethrough, means for securingsaid knuckles against vertical movement with respect to said frame, adraw bar connected to said frame, said draw bar comprising telescopingparts, means connecting the knuckles of the front wheels, and means toconnect the forward portion of said draw bar with one of said frontknuckles, whereby a rearward movement of the forward portion of saiddraw bar will move the knuckle to which said draw bar is directlyconnected toward said draw bar.

12. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andthrough which the axles are vertically adjustable, means for securingsaid knuckles against vertical movement with respect to the supportingframe, a rod connecting the knuckles of the front wheels, draw-barmechanism connected to said frame, and a steering rod connecting one ofthe front knuckles with said drawbar mechanism, said steering rod beingresilientl connected to said steering knuckle.

13. n a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andthrough which the axles are vertically adjustable, means for securingsaid knuckles against vertical movement with respect to the supportingframe, a rod connecting the knuckles of the front wheels, draw-barmechanism connected to the underside of said frame rearwardly of itsforward end, a steering rod connecting one of the front knuckles withsaid drawbar mechanism, and means to adjust said draw-bar mechanism withrespect to said frame.

1%. In a plow adapted to be drawn by a propelling means, the combinationwith a supporting frame carrying plow bodies, of wheels upon which saidframe is mounted, axles for said wheels having oscillatory verticalportions, means for raising and lowering said axles relatively to thesupporting frame, steering knuckles non-rotatably engaging the axles andthrough which the axles are vertically adjustable, means for securingsaid knuckles against vertical movement with respect to the supportingframe, a rod connectlng the knuckles of the front wheels, draw-barmechanismconnected to said frame, a steering rod connecting one of thefront knuckles with said draw-bar mechanism, means to adjust saiddraw-bar mechanism horizontally and vertically with respect to saidframe, and means to vary the point of attachment of said steering rodonsaid draw-bar mechanism.

15. In a plow adapted to be drawn by propelling means, the combinationwith a supporting frame carrying plow bodies of wheels upon which saidframe is mounted, means for vertically adjusting said wheels withrespect to said frame, steering mechanism for oscillating the steeringwheels about vertical axes, means for preventing vertical movement ofsaid steering mechanism upon vertical adjustment of said steeringwheels, a draw-bar to which said steering mechanism is connected, meansto connect said draw-bar to said frame, means to adjust the inclinationof said connecting means with respect to said frame, and means to adjustthe relation of said steering mechanism with respect to said draw-bar.

In testimony whereof, I have subscribed my name.

WELDEN O. RARIG.

Witnesses:

GLEN E. SMITH, HENRY A. PARKS.

